Coupling



MalCh 15, 1932. E, E JOHNSON 1,849,234

GOUPLING Filed ont. 18, 1925 Z'N vE/v To@ EDWARD E'. JH/vsom BY Ww( WM A 7' TOR/ VE Ys,

Patented Mar. 15, 1932 UNITED STATES EDWARD E. JOHNSON, or sT. PAUL, MINNESOTA, Assienonro 'EDWARD aonrrrsogiv.` Y K INQORPOBATED, or sT. PAUL, MINNESOTA, A ooRPoRA'rroN COUPLING f Application mea october 18, m23.' 'seriaina 669.441.

other with the wings of one strip positioned at right angles to the wings of the other strip to produce a socket and securing the middle portions together. v

The full objects and advantages of my 1nvention will appear in connection with the` detailed description, and the novel features of my inventive idea will be particularly pointed out in the claims.

In the drawings which illustrate the manufacture of my coupling;-

Fig. l is a face view of a` strip Vof sheet metal. Fig. 2 is a face view of another strip of sheet metal. Fig. 3 is a view in so-called perspective showing the coupling which is produced by bending the end portions of the two strips to form wings and securing the middle portions of the strips together. Fig. 4 is a side elevational view of a tubular attaching member which may be employed to secure the strips together. F ig. 5 is a plan view of said tubular member. Fig. 6 is a sectionalelevational view showing the strips secured together by another form of attach-V ing member. Fig. 7 is an elevational view showing the manner in which two wooden rods may be secured together by using .two

of the individual couplings.

In carrying out my invention, two strips 1() and 12 are cut to the desired size from sheet metal, the strip 10 being preferably considerably longer than the strip l2. The two end portions of the strip 10 are provided with holes 14, 16, 18, and 20, and this strip is providedcentrally With an elongated opening 22 which is shown squaredon two opposite sides. The two end portions of the strip 12 are provided with holes 24 and 26 and this strip is v provided with an elongated opening 28 which is like the opening 22 but extends longitudinally while the opening 22 .extends transversely. equalgdistancesfromthe central opening therein, the strip 10 is bent at right angles yon 'the lines; 30 .and 32 to, form wings 34 and 36,'thus leaving the middle portion v38. The stripr12fl at equal distance'sfrom the ,cen-v tral opening therein is bent at right angles on the lines 40 and 42 to form wings 44 and 46,

thus ,leaving the" middle portion 48.. The middle portions Lof the two wingedy members thus produced are placed in'contact with eachother with the wings `of one strip posi-` tioned at right angles to ythepwings ofthe other strip to produce a socket. It is 'obvif ous that lwhenthis is done, the two openingsy 22` and` 28will exactly coincide lor register with each other. tions 38V and 40 may be secured together in any suitable manner for the purpose of forming The contacting middle pora coupling. VForthispurposeatubular attachingmember 50 shown in Figs. 4 andi may be employed. AThis member is internally threaded and its closed end isprovided With an axiallyfextending lug52 which vis properly f shaped to fit into the registering openings 22 and 28. Thelug is then headed down as in.

'dicated yat 54 in Fig. 7, the shape of the lug y and openings preventing relative turningy of the parts. In Fig..V 6, the contacting portions 38 and48 are shown secured together 'by means" of an externally threaded cylindrical member 56 lhaving auhead`58V provided with an :axially extendinglug 60 whichextends onlyl into an opening in the portion 38. Y The portion 48 is. therefore in this form, left unprovidedwith an .opening` so `that the end of thelugfO b'uttsfa'gainst the surface of this y portion.y The member.. 56 jis secured by l welding-the head58 and the nlug 60 to the contacting middle portions 38 and 48. Fig.7

shows how two square rods or sha'ftsn1aybese cured together by means of the'two couplings shown inl Figs. 3 and 6, the screw-threaded member 56 being screwed into the threaded recess inthe tubular member 50. As shown in Fig. 7, the couplings are secured to square wooden yrods such as 62 by rivets 64 passing through the holes in the winged strip 10 and by a rivet 66, passingthrough the holes in 'i Y the'winged strip 12. It is obvious that the internally threaded tubular member 50 may signature.'

be used to secure the externally screwthreaded end of a metal rod and that the externally threaded cylindrical member 56 may be used to receive the internally threaded end of a metal tube. My method provides a very strong and effective coupling which is much less liable to break in use than castingsV sinceA the rolled or drawn metal which I employ.y is tough and ductile enough to permit consider able flexing Without breaking.

I claim:

1. A coupling comprising a relatively long f strip of sheet metal, a relatively short strip of sheet metal, said strips having their endv portions angularly positioned to form Wings,

v the middlel portions ofthe stripsbeing in contactv with each other with the wings of one strip positioned at rightl ang-les tothe Wings oftheY other strip to produce af-socket, and means `forfsecuring said middle portions to'-` gether. Y Y

2. Af coupling comprising two strips of.`

sheet metal Ahaving their end portionsfangularly `disposed to form wings, the middle portions of the strips being in contact With each other Withthe Wings of one strip positionedy atright angles tothe Wingsl of the'other strip to'produce a socket, at least one of said strips havingan elongated opening-atits middle,

and arod attaching member'having a lug of" elongated cross-section secured in said elongated opening. i Y 3. A coupling comprising two Vstrips 'of sheet metal having their end portions angu- "larly disposed to form Wings, the Vmiddle lpor-y tions ofthe strips being in contact- With each other withthe wings of'one strip positioned" atrig-ht angles to the Wings 'of lthe* other strip .toproducea socket, one of said'strips 'having an elongatedtransversely extending openingatits middle and the other of'said strips having 4an elongated longitudinally exi tending opening'atits middle, and arod attaching member-havingv a;` lug of elongated fcross section secured in said openings when registered with each other.

4. A coupling comprising a base having an elongatedopening at itsfmiddle', four side members extending at right angles to each othersuccessively and 'atN right angles to said basetoforml asoclret, anda rod 'attaching knemberfhaving-a lug of'elongated cross-sec# tion secured in said opening.

In testimony' whereof Ihereunto aix my EDWARD E. JOHNSON.' 

